package com.xj.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.xj.reggie.common.R;
import com.xj.reggie.entity.Employee;
import com.xj.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;

/**
 * @Author XJ
 * @Date 2022/10/16 15:34
 * @PackageName:com.xj.reggie.controller
 * @ClassName: Employee
 * @Description: TODO
 * @Version 1.0
 */

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

	@Autowired
	private EmployeeService employeeService;

	/**
	 * 员工登录
	 * @param request
	 * @param employee
	 * @return
	 */
	@PostMapping("/login")
	public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){


		//1.将页面提交的密码password进行md5加密处理
		String password = employee.getPassword();
		password = DigestUtils.md5DigestAsHex(password.getBytes());

		//2.根据页面提交的用户名username查询数据库
		LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
		queryWrapper.eq(Employee::getUsername,employee.getUsername());
		Employee emp = employeeService.getOne(queryWrapper);

		//3.如果没有查询到则返回登录失败结果
		if(emp==null){
			return R.error("账号或密码错误！");
		}

		//4.密码比对，如果不一致返回登录失败结果
		if(!emp.getPassword().equals(password)){
			return R.error("账号或密码错误！");
		}

		//5.查看员工状态，如果为禁用状态，则返回”员工已禁用“结果
		if(emp.getStatus()==0){
			return R.error("账号已禁用!");
		}

		//6.登录成功，将员工id存入Session并返回登录成功结果
		request.getSession().setAttribute("employee",emp.getId());
		return R.success(emp);

	}


	/**
	 * 员工退出
	 * @param request
	 * @return
	 */
	@PostMapping("/logout")
	public R<String> logout(HttpServletRequest request){
		//清理Session中保存的当前登录员工的id
		request.getSession().removeAttribute("employee");
		return R.success("退出成功");
	}

	/**
	 * 新增员工
	 * @param employee
	 * @return
	 */
	@PostMapping
	public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
		log.info("新增员工，员工信息:{}",employee.toString());

		//设置初始密码123456,需要进行md5加密处理
		employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

		//employee.setCreateTime(LocalDateTime.now());
		//employee.setUpdateTime(LocalDateTime.now());

		//获取当前登录用户的id
		//Long empId = (Long)request.getSession().getAttribute("employee");
		//employee.setCreateUser(empId);
		//employee.setUpdateUser(empId);

		employeeService.save(employee);
		return R.success("新增员工成功");
	}

	/**
	 * 员工信息分页查询
	 * @param page
	 * @param pageSize
	 * @param name
	 * @return
	 */
	@GetMapping("/page")
	public R<Page> page(int page,int pageSize,String name){
		log.info("page = {},pageSize = {},name= {}",page,pageSize,name);

		//构造分页构造器
		Page pageInfo=new Page(page,pageSize);

		//构造条件构造器
		LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
        //添加过滤条件
		queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);
		//添加排序条件
		queryWrapper.orderByDesc(Employee::getUpdateTime);

		//执行查询
		employeeService.page(pageInfo,queryWrapper);

		return R.success(pageInfo);
	}


	/**
	 * 根据id修改员工信息
	 * @param employee
	 * @return
	 */
	@PutMapping
	public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
		log.info(employee.toString());

//		Long empId = (Long) request.getSession().getAttribute("employee");
//		employee.setUpdateTime(LocalDateTime.now());
//		employee.setUpdateUser(empId);
		employeeService.updateById(employee);

		return R.success("员工信息修改成功！");
	}

	/**
	 * 根据id查询员工信息
	 * @param id
	 * @return
	 */
	@GetMapping("/{id}")
	public R<Employee> getById(@PathVariable Long id){
		log.info("根据id查询员工信息。。。");
		Employee employee = employeeService.getById(id);
		if(employee != null){
			return R.success(employee);
		}
		return R.error("没有查询到对应员工信息！");
	}
}
